近年来,许多美国青少年越来越迷恋一种潇洒而又冒险的体育活动——单排轮独轨滑行,简称滑轨运动。进行滑轨运动必须具有设备和场地两个基本条件,首先是滑板,滑板下面装有一排聚氨醋材料制造的轮子。场地是一个坡度较大的山坡,沿山坡铺设一条钢轨。运动员把滑板套在脚上,然后从高处沿钢轨迅速滑下。滑轨运动+分富有刺激性,很适合美国青少年的口味。有些青少年为了在众人面前炫耀自己技艺高超和敢于冒险,有时两个人或者更多人同踏在一个滑板上,从 In recent years, many American teenagers have become increasingly obsessed with a smart and adventurous sporting event - single-row single-track skating, or simply skateboarding. Sliding rail movement must have two basic conditions of equipment and site, first of all skateboards, skateboards installed below a row of wheels made of polyurethane material. The site is a sloping hill with a rail laid along the hill. Athletes put skateboarding on their feet and then quickly slide down the rails from above. Rails movement + points rich and exciting, it is suitable for the tastes of American teens. In order to show off their skills and dare to take risks in front of people, some teens sometimes take two or more people on the same skateboard